[asterisk-users] having trouble to register cisco 7975 with pjsip

Joshua Colp jcolp at digium.com
Tue Feb 24 08:02:59 CST 2015

Nick Awesome wrote:
> Ok after I added tcp transport and disable force_rport phone get
> registered, but still have issues with calls,
> when I call from cisco from, it work except hangup.
> when I call to cisco phone asterisk return congested

If you use UDP with force_rport=no it'll work.
If you use TCP then set rewrite_contact=yes so it'll reuse the 
established TCP connection.

Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

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